Which of the following is the repository source file in Ubuntu?1 point/etc/repsrc.lst/etc/repository_sources/apt/repositories.lst/etc/APT/sources.list

Breakdown the Problem

1. Identify the options provided in the question regarding the source file in Ubuntu.
2. Determine the correct file path that serves as the repository source file.

Relevant Concepts

Ubuntu uses specific files to manage software sources, particularly the file located at /etc/apt/sources.list. This file contains a list of repositories from which packages can be installed or updated.

Analysis and Detail

1. Option 1: /etc/repsrc.lst - This is not a standard file in Ubuntu for managing repositories.
2. Option 2: /etc/repository_sources/apt/repositories.lst - This option suggests a directory structure that is not standard; the correct location does not align with this format.
3. Option 3: /etc/APT/sources.list - The directory name is incorrectly capitalized. The correct directory structure uses lowercase "apt."
4. Option 4: /etc/apt/sources.list - This is the recognized file where the repository sources are defined for package management in Ubuntu.

Verify and Summarize

Only Option 4 aligns with the standard Ubuntu file structure regarding repository sources.

Final Answer

The correct repository source file in Ubuntu is /etc/apt/sources.list.